Measurements:
°C
°F
CURRENT WEATHER
15:18
Sanibel Island
98°F
E 5 mph
Feels like: 122°F
Precip: 6%
World Resorts USA Sanibel Island Weather

7 Day Weather Forecast

08.05
wed
DAY
96°F
NW 5 mph
precip
6%
NIGHT
82°F
W 12 mph
precip
8%
08.06
thu
DAY
92°F
W 10 mph
precip
4%
NIGHT
86°F
W 16 mph
precip
8%
08.07
fri
DAY
92°F
W 9 mph
precip
14%
NIGHT
82°F
S 6 mph
precip
29%
08.08
sat
DAY
92°F
NW 9 mph
precip
19%
NIGHT
90°F
W 8 mph
precip
19%
08.09
sun
DAY
92°F
NW 7 mph
precip
4%
NIGHT
90°F
N 6 mph
precip
7%
08.10
mon
DAY
92°F
NW 8 mph
precip
19%
NIGHT
86°F
W 4 mph
precip
5%
08.11
tue
DAY
90°F
N 6 mph
precip
7%
NIGHT
90°F
NE 4 mph
precip
9%

Sanibel Island Sea Water Temperature in August, °F

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Sanibel Island was 31.6°F. The maximum and minimum values were 30.7°F and 32.2°F respectively.

Sanibel Island on the Weather Map

Best Time to Visit Sanibel Island
The most sunny months:
March 19 days
April 18 days
December 17 days
The most warm months:
July 92.6 °F
August 92.2 °F
June 91.2 °F
Warmest sea temperature:
August 91.8 °F
July 91.5 °F
September 90.3 °F
The most cold months:
January 71.3 °F
December 74.5 °F
February 75.1 °F
The most rainy months:
July 5 days
June 5 days
August 4 days
The most windy months:
October 10 mph
November 10 mph
January 10 mph
more details